First Lady Melania Trump and her son Barron Trump participate in the 70th National Thanksgiving turkey pardoning ceremony in the Rose Garden of the White House in Washington, U.S., November 21, 2017. REUTERS/Carlos Barria

U.S. first lady Melania Trump reads the children's book "Party Animals" at the 139th annual White House Easter Egg Roll on the South Lawn of the White House in Washington, U.S., April 17, 2017. REUTERS/Joshua Roberts

U.S. First Lady Melania Trump greets school children as she tours the holiday decorations with reporters at the White House in Washington, U.S. November 27, 2017. REUTERS/Jonathan Ernst

First lady Melania Trump visits American International School of Riyadh, Saudi Arabia, May 21, 2017. REUTERS/Hamad I Mohammed

U.S. President Donald Trump delivers remarks as he hosts a Congressional picnic event, accompanied by First Lady Melania Trump, at the White House in Washington, U.S., June 22, 2017. REUTERS/Carlos Barria

First Lady Melania Trump holds a baby as U.S. President Donald Trump (not pictured) greets members of the congress and their families as they attend a congressional picnic event at the White House in Washington, U.S., June 22, 2017. REUTERS/Carlos Barria

US First Lady Melania Trump with France's First Lady Brigitte Trogneux during the second day of G7 Taormina summit on the island of Sicily in Taormina, Italy on May 27, 2017. (Photo by Gabriele Maricchiolo/NurPhoto via Getty Images)

WASHINGTON, DC - JUNE 04: First lady Melania Trump and President Donald Trump exit the residence to attend a reception at Ford's Theatre on June 4, 2017 in Washington, DC. (Photo by Olivier Douliery-Pool/Getty Images)

U.S. first lady Melania Trump introduces her husband President Donald Trump as he rallies with service members at Sigonella Air Force Base at Naval Air Station Sigonella at the end of Trump's participation in the G7 summit in Sicily, Italy May 27, 2017. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

US First Lady Melania Trump (R) visits the Queen Fabiola children's hospital, on the sidelines of the NATO (North Atlantic Treaty Organization) summit, on May 25, 2017 in Brussels.
US President Donald Trump meets NATO and EU leaders for the first time with the US president set to press nervous allies to do more on terrorism after the Manchester bombing. / AFP PHOTO / BELGA / LAURIE DIEFFEMBACQ / Belgium OUT (Photo credit should read LAURIE DIEFFEMBACQ/AFP/Getty Images)

BRUSSELS , BELGIUM - MAY 24, 2017:
President Donald Trump and First Lady Melania Trump pictured during their meeting with Queen Mathilde and King Philippe of Belgium.
(Picture by Didier Lebrun/Photonews via Getty Images)

US President Donald Trump (R) and First Lady Melania Trump step off the Air Force One upon arrival at Melsbroek military airport in Steenokkerzeel on May 24, 2017.
US President Donald Trump arrived in Brussels ahead of his first talks with NATO and European Union leaders. / AFP PHOTO / Emmanuel DUNAND (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

VATICAN CITY, VATICAN - MAY 24: Pope Francis exchanges gifts with United States President Donald Trump and First Lady Melania Trump during an audience at the Apostolic Palace on May 24, 2017 in Vatican City, Vatican. The President Trump will return on Italy on Friday attending the Group of 7 Summit in Sicily. (Photo by Vatican Pool/Getty Images)

First lady Melania Trump is greeted as she visits GE All women business process service center in Riyadh, Saudi Arabia, May 21, 2017. REUTERS/Hamad I Mohammed

U.S. President Donald Trump and first lady Melania Trump arrive aboard Air Force One at King Khalid International Airport in Riyadh, Saudi Arabia May 20, 2017. REUTERS/Jonathan Ernst

U.S. President Donald Trump and Melania Trump depart the White House to embark on a trip to the Middle East and Europe, in Washington, U.S., May 19, 2017. REUTERS/Kevin Lamarque

U.S. President Donald Trump and U.S. first lady Melania Trump are pictured at the 139th annual White House Easter Egg Roll on the South Lawn of the White House in Washington, U.S., April 17, 2017. REUTERS/Joshua Roberts TPX IMAGES OF THE DAY

U.S. first lady Melania Trump and China's first lady Peng Liyuan applaud after students performed for them at Bak Middle School of the Arts in West Palm Beach, Florida, U.S., April 7, 2017. REUTERS/Joe Skipper

U.S. first lady Melania Trump watches as eighth grade art students paint at the Excel Academy public charter school in Washington, U.S., April 5, 2017. REUTERS/Joshua Roberts

U.S. President Donald Trump (L) and first lady Melania Trump (2ndL) welcome Jordan?s King Abdullah (R) and Queen Rania at the White House in Washington, U.S., April 5, 2017. REUTERS/Kevin Lamarque

U.S. President Donald Trump kisses his wife Melania during a "Make America Great Again" rally at Orlando Melbourne International Airport in Melbourne, Florida, U.S. February 18, 2017. REUTERS/Kevin Lamarque

U.S. first lady Melania Trump and Sara Netanyahu look at the lunch counter exhibit during a visit to the African American Museum of History and Culture in Washington, U.S., February 15, 2017. REUTERS/Joshua Roberts

U.S. First Lady Melania Trump (L) and Akie Abe, wife of Japanese Prime Minister Shinzo Abe, listen to a guide as they tour Morikami Museum and Japanese Gardens in Delray Beach, Florida, U.S., February 11, 2017. REUTERS/Joe Skipper

U.S. President Donald Trump talks to journalist members of the travel pool accompanied by First Lady Melania Trump on board of the Air Force One during his trip to Palm Beach, Florida, U.S., February 10, 2017. REUTERS/Carlos Barria

With her face bearing the scars of an acid attack, Natalia Ponce de Leon stands with first lady Melania Trump after being recognized at the 2017 Secretary of State?s International Women of Courage (IWOC) Award ceremony at the State Department in Washington, U.S., March 29, 2017. REUTERS/Kevin Lamarque

U.S. President Donald Trump and U.S. first lady Melania Trump walk with their son Barron to Marine One at the White House in Washington, U.S., March 17, 2017. REUTERS/Joshua Roberts

U.S. first lady Melania Trump (L) sits with Sara, wife of Israeli Prime Minister Benjamin Netanyahu, during a visit to the Hadassah Ein Kerem hospital in Jerusalem May 22, 2017. REUTERS/Sebastian Scheiner/Pool

U.S. President Donald Trump and First Lady Melania Trump host a reception for Senators and their spouses at the East Room of the White House in Washington, U.S., March 28, 2017. REUTERS/Carlos Barria

U.S. first lady Melania Trump touches the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City May 22, 2017. REUTERS/Ronen Zvulun

U.S. President Donald Trump and first lady Melania Trump hold hands as they arrive at the Naval Air Station Sigonella to visit U.S. troops before returning to Washington D.C. at Sigonella Air Force Base in Sigonella, Sicily, Italy, May 27, 2017REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

U.S. President Donald Trump and First Lady Melania Trump leave the MedStar Hospital Center following their visit to injured victims, after a gunman opened fire on a baseball field where Republican lawmakers were practicing for a charity game, in Washington, DC, U.S. June 14, 2017. REUTERS/Carlos Barria TPX IMAGES OF THE DAY TPX IMAGES OF THE DAY

U.S. President Donald Trump and first lady Melania Trump arrive for dinner at Trump National Golf Club in Bedminster, New Jersey, July 14, 2017. REUTERS/Kevin Lamarque

U.S. President Donald Trump and First Lady Melania Trump leave after attending the traditional Bastille Day military parade on the Champs-Elysees avenue in Paris, France, July 14, 2017. REUTERS/Charles Platiau

U.S. First Lady Melania Trump reacts during the traditional Bastille Day military parade on the Champs-Elysees avenue in Paris, France, July 14, 2017. REUTERS/Charles Platiau

U.S. President Donald Trump and First Lady Melania Trump board Air Force One as they depart Orly aiport after the traditional Bastille Day military parade in Paris, France, July 14, 2017. REUTERS/Kevin Lamarque

U.S. President Donald Trump and First Lady Melania Trump stand in front of the American flag at the end of the traditional Bastille Day military parade on the Champs-Elysees in Paris, France, July 14, 2017. REUTERS/Gonzalo Fuentes

From L-R, Brigitte Macron, wife of French President Emmanuel Macron, U.S. President Donald Trump and First lady Melania Trump pose at the Jules Verne restaurant for a private dinner at the Eiffel Tower in Paris, France, July 13, 2107. REUTERS/Yves Herman

French President Emmanuel Macron (R) tours Marechal Foch's Tomb with US President Donald Trump (C) and First Lady Melania Trump (L) at Les Invalides museum in Paris, France, July 13, 2017. REUTERS/Ian Langsdon/Pool

U.S. President Donald Trump and first lady Melania Trump board Air Force One as they depart Joint Base Andrews in Maryland, U.S., enroute to Paris July 12, 2017. REUTERS/Kevin Lamarque

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer TPX IMAGES OF THE DAY

U.S. First Lady Melania Trump is greeted by Hamburg mayor Olaf Scholz during a G20 leaders spouses event at the townhall during the G20 summit in Hamburg, Germany July 8, 2017 REUTERS/Jens Buettner, Pool

U.S. President Donald Trump and his wife Melania Trump attend a concert at the Elbphilharmonie Concert Hall during the G20 summit in Hamburg, Germany, July 7, 2017. REUTERS/Kay Nietfeld,Pool

Hamburg mayor Olaf Scholz, U.S. First Lady Melania Trump, the husband of the German Chancellor Joachim Sauer and U.S. President Donald Trump stand together after a family photo of the participants of the G20 summit and their spouses prior a concert at the Elbphilharmonie in Hamburg, Germany, July 7, 2017. REUTERS/Ludovic Marin/POOL

U.S. President Donald Trump and his wife Melania attend a concert at the Elbphilharmonie Concert Hall during the G20 summit in Hamburg, Germany July 7, 2017. REUTERS/Christian Charisius,Pool

First Lady of the U.S. Melania Trump waves as she, U.S. President Donald Trump, Polish President Andrzej Duda and Polish First Lady Agata Kornhauser-Duda leave after Trump's public speech at Krasinski Square, in Warsaw, Poland July 6, 2017. REUTERS/Laszlo Balogh

U.S. President Donald Trump and First Lady Melania Trump arrive aboard Air Force One at Warsaw military airport in Warsaw, Poland July 5, 2017. REUTERS/Laszlo Balogh

U.S. President Donald Trump and First Lady Melania Trump arrive for the G20 leaders summit in Hamburg, Germany July 6, 2017. REUTERS/Axel Schmidt

U.S. President Donald Trump and first lady Melania Trump welcome South Korean President Moon Jae-in and his wife Kim Jeong-sook to the White House in Washington, U.S., June 29, 2017. REUTERS/Carlos Barria

President Donald Trump concludes his remarks while First Lady Melania Trump applauds as they welcome military families who have gathered for a Fourth of July picnic on the South Lawn of the White House prior to a fireworks display, in Washington, U.S., July 4, 2017. REUTERS/Mike Theiler

U.S. President Donald Trump and First Lady Melania Trump wave as India's Prime Minister Narendra Modi leaves the White House after a visit, in Washington, U.S., June 26, 2017. REUTERS/Carlos Barria

First lady Melania Trump listens with Vice President Mike Pence (2ndL) and Secretary of State Rex Tillerson during a joint news conference between U.S. President Donald Trump and Indian Prime Minister Narendra Modi in the Rose Garden of the White House in Washington, U.S., June 26, 2017. REUTERS/Carlos Barria

U.S. President Donald Trump (C) and first lady Melania Trump meet with Indian Prime Minister Narendra Modi in the Oval Office at the White House in Washington, U.S., June 26, 2017. REUTERS/Carlos Barria

U.S. First Lady Melania Trump greets schoolchildren as she tours the holiday decorations with reporters at the White House in Washington, U.S., November 27, 2017. REUTERS/Jonathan Ernst

U.S. President Donald Trump waves as he walks with First Lady Melania Trump and their son Barron on the South Lawn of the White House upon their return to Washington, U.S., after a Thanksgiving vacation in Florida, November 26, 2017. REUTERS/Yuri Gripas

U.S. President Donald Trump and First Lady Melania Trump visit a U.S. Coast Guard Station Lake Worth Inlet in Riviera Beach, Florida, U.S., November 23, 2017. REUTERS/Eric Thayer

U.S. President Donald Trump speaks as his son Barron and first lady Melania Trump listen during the 70th National Thanksgiving turkey pardoning ceremony in the Rose Garden of the White House in Washington, U.S., November 21, 2017. REUTERS/Jim Bourg

U.S. President Donald Trump and U.S. first lady Melania visit the Forbidden City with Chinaï¿½ President Xi Jinping in Beijing, China, November 8, 2017. REUTERS/Jonathan Ernst

FILE: First Lady Melania Trump listens as U.S. President Donald Trump, not pictured, speaks to members of the media before boarding Marine One on the South Lawn of the White House in Washington, D.C., U.S., on Friday, Oct. 13, 2017. The one year anniversary of U.S. President Donald Trump's inauguration falls on Saturday, January 20, 2018. Our editors select the best archive images looking back over Trumps first year in office. Photographer: Al Drago/Bloomberg via Getty Images

U.S. President Donald Trump, first lady Melania Trump and their son Barron step from Air Force One upon their arrival at Joint Base Andrews in Maryland, U.S., January 15, 2018. REUTERS/Kevin Lamarque

U.S. President Donald Trump and first lady Melania Trump, with their son Barron, arrive for a New Year's Eve party at his Mar-a-Lago club in Palm Beach, Florida, U.S. December 31, 2017. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

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Melania Trump's speech will be delivered at a luncheon attended by first spouses of global world leaders.

From the national opioid epidemic to the violence of Charlottesville, Melania Trump has spoken out on a number of issues since her husband became president -- but children have been a central focus of her visits and public appearances on multiple occasions.

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. At 2ndL, Martin Hirsch, Director of Paris' public assistance hospitals AP-HP. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. At L, Martin Hirsch, Director of Paris' public assistance hospitals AP-HP. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. At 3rdL, Martin Hirsch, Director of Paris' public assistance hospitals AP-HP. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer

REFILE WITH CORRECTING SLUG U.S. First Lady Melania Trump visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer

U.S. First Lady Melania Trump talks with Martin Hirsch, Director of Paris' public assistance hospitals AP-HP as she visits the Necker Hospital for children in Paris, France, July 13, 2017. REUTERS/Philippe Wojazer

US First Lady Melania Trump (C) stands next to medical staff during a visit to the Necker Hospital in Paris, on July 13, 2017.
US President arrived in Paris for a presidential visit filled with Bastille Day pomp and which the White House hopes will offer respite from rolling scandal backing home. / AFP PHOTO / Martin BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)

US First Lady Melania Trump (C) and Paris' public assistance hospitals AP-HP Martin Hirsch (L) visit the Necker Hospital in Paris, on July 13, 2017.
US President arrived in Paris for a presidential visit filled with Bastille Day pomp and which the White House hopes will offer respite from rolling scandal backing home. / AFP PHOTO / Martin BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)

PARIS, FRANCE - JULY 13: United States First Lady Melania Trump poses as she arrives to visit Necker Hospital for children on July 13, 2017 in Paris, France. The United States of America President Donald Trump and his wife are on a 2 days visit to Paris. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JULY 13: United States First Lady Melania Trump speaks with children as she visits Necker Hospital for children on July 13, 2017 in Paris, France. The United States of America President Donald Trump and his wife are on a 2 days visit to Paris. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JULY 13: United States First Lady Melania Trump speaks with children as she visits Necker Hospital for children on July 13, 2017 in Paris, France. The United States of America President Donald Trump and his wife are on a 2 days visit to Paris. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JULY 13: United States First Lady Melania Trump speaks with children as she visits Necker Hospital for children on July 13, 2017 in Paris, France. The United States of America President Donald Trump and his wife are on a 2 days visit to Paris. (Photo by Aurelien Meunier/Getty Images)